Adam's Paint Sprayer Repair

Mildred the shop cat is judging you this morning.... It's mostly because of this conversation with a customer....
Yesterday:
Mr. Adam, I need my sprayer (1095XT) to use tomorrow.
Me: Ok, I'll look at it today.
I proceed to stay up until 10pm looking at said sprayer...
This morning:
Me: Your sprayer is ready, I cleaned everything out and didn't find anything suspicious. I'll just have to spray with it and see how it does
Customer: Ok, thank you Mr. Adam. I'll be by 430/5 this evening to pick it up....
🙄

This 740ix came in to my shop with pressure cuts in the block where the lower packing inserts. As the block is no longer available, I used a patching putty that is good for 5000 psi to fill in the damage. After some sanding with fine emery cloth, I was able to save the block and repack the pump. This was a first for me, and I'm pretty happy with the results.

Hello friends and followers, today I want to talk a little bit about spray guns.
What you see here is a needle out of a Graco Silver Plus airless spray gun. This particular gun is off a Graco Line Lazer III 3900.

You can see the ball on the end of the needle is worn with pitting and it's no longer smooth. As the ball needs to seat against the carbide seat in the diffuser on the end of the gun, this needle will no longer hold pressure.

When your gun spits, it's because your needle is not seating against the seat. Debris or wear will both cause this issue. A quick repack and pressure test, and this gun is back in business!